JP2000220117A - Atmosphere cleaning sound insulation panel and atmosphere cleaning method - Google Patents
Atmosphere cleaning sound insulation panel and atmosphere cleaning methodInfo
- Publication number
- JP2000220117A JP2000220117A JP11025956A JP2595699A JP2000220117A JP 2000220117 A JP2000220117 A JP 2000220117A JP 11025956 A JP11025956 A JP 11025956A JP 2595699 A JP2595699 A JP 2595699A JP 2000220117 A JP2000220117 A JP 2000220117A
- Authority
- JP
- Japan
- Prior art keywords
- photocatalyst
- coating film
- nox
- cementitious coating
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 9
- 238000009413 insulation Methods 0.000 title abstract 4
- 238000004140 cleaning Methods 0.000 title 2
- 239000011941 photocatalyst Substances 0.000 claims abstract description 72
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 14
- 230000001678 irradiating effect Effects 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 82
- 238000000576 coating method Methods 0.000 claims description 82
- 229910052782 aluminium Inorganic materials 0.000 claims description 35
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 35
- 238000004887 air purification Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- 239000003546 flue gas Substances 0.000 claims 1
- 239000004568 cement Substances 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000001590 oxidative effect Effects 0.000 abstract description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052753 mercury Inorganic materials 0.000 abstract description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract description 2
- 229910017604 nitric acid Inorganic materials 0.000 abstract description 2
- 239000003973 paint Substances 0.000 abstract 4
- 231100000167 toxic agent Toxicity 0.000 abstract 3
- 239000003440 toxic substance Substances 0.000 abstract 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 95
- 238000012360 testing method Methods 0.000 description 12
- 239000010419 fine particle Substances 0.000 description 10
- 238000007789 sealing Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000011358 absorbing material Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 4
- 239000010407 anodic oxide Substances 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 229910001593 boehmite Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、主として、車両等
の走行に伴う騒音を遮音、吸音するために、高速道路や
鉄道の沿線等に沿って設置される防音壁として、また橋
梁や高架道路橋、堀割、半地下道路等の構造体の下面部
や壁面、天井面等に壁体として取付けられ、大気中のＮ
Ｏｘを補足し、良好な環境を得ることができる大気浄化
防音パネル、及び同様に大気中のＮＯｘを除去すること
ができる大気浄化方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a soundproof wall installed along a highway or a railway along a railway or the like, in order to isolate or absorb noise caused by the running of a vehicle or the like, and to a bridge or an elevated road. It is installed as a wall on the lower surface, wall, ceiling, etc. of structures such as bridges, trenches, semi-underground roads, etc.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purification soundproof panel capable of obtaining a favorable environment by supplementing Ox, and an air purification method capable of removing NOx in the atmosphere.
【０００２】[0002]
【従来の技術】車両などの走行に伴う騒音を遮音、吸音
するために用いられる吸音パネルとして、多数の開孔を
有する前面板と背面板とにより形成された中空内に吸音
材が内装されたものがある。かかる防音パネルは、前面
板の開孔より中空内に音を入射させて、吸音材により吸
音させると共に、中空内で反射を繰り返させることによ
り音を減衰させ、さらに背面板により遮音して音が背面
側に漏れないようになされたものである。2. Description of the Related Art As a sound-absorbing panel used for insulating and absorbing noise caused by running of a vehicle or the like, a sound-absorbing material is provided inside a hollow formed by a front plate and a rear plate having a large number of openings. There is something. Such a soundproof panel has a sound incident on a hollow through an opening in a front plate, is absorbed by a sound absorbing material, is attenuated by repeating reflection in the hollow, and is further sound-insulated by a rear plate. It is made so as not to leak to the back side.
【０００３】[0003]
【発明が解決しようとする課題】上記の如き従来の吸音
パネルは、それが車両等の走行に伴う騒音を発する所に
設置されることにより、それなりの騒音公害を低減でき
るものであるが、近年、車両等の走行に伴う公害として
は、他に自動車特にディーゼル自動車から排出される排
気ガス中に含まれる窒素酸化物（ＮＯｘ）による環境汚
染の問題が指摘されている。このＮＯｘは、人体に呼吸
器障害を誘発するといわれ、また太陽紫外線、炭化水素
と関係してオキシダントを生成し、いわゆる光化学スモ
ッグを引き起こすものである。しかしながら上記の如
く、従来の吸音パネルは騒音公害の低減のみを目的とし
たものであり、ＮＯｘによる環境汚染については何ら効
果がないものであった。The above conventional sound absorbing panel as described above can be installed at a place where it emits noise due to the running of a vehicle or the like, so that a reasonable noise pollution can be reduced. In addition, as pollution caused by running of vehicles and the like, it has been pointed out that there is a problem of environmental pollution due to nitrogen oxides (NOx) contained in exhaust gas discharged from automobiles, especially diesel automobiles. This NOx is said to induce respiratory disorders in the human body, and generates oxidants in association with solar ultraviolet rays and hydrocarbons, causing so-called photochemical smog. However, as described above, the conventional sound-absorbing panel is intended only to reduce noise pollution, and has no effect on environmental pollution by NOx.
【０００４】そこで本発明は上記の如き問題を解決し、
騒音の低減を図ると共にＮＯｘの低減も図ることのでき
る大気浄化防音パネル、及びＮＯｘの低減を図ることの
できる大気浄化方法を提供せんとするものである。Accordingly, the present invention solves the above-mentioned problems,
It is an object of the present invention to provide an air purification soundproof panel capable of reducing noise and NOx and an air purification method capable of reducing NOx.
【０００５】[0005]
【課題を解決するための手段】本発明者は、防音効果に
加えて防音パネルに如何にしてＮＯｘの低減効果をも具
備させるかを鋭意研究した結果、二酸化チタン等の光触
媒は紫外線を照射させることにより活性化され、その活
性化により強い酸化力が発現されることから、防音パネ
ルの外面に光触媒を含有する塗膜を形成すれば、空気中
のＮＯｘ等がこの光触媒に触れると酸化されて除去され
ることが知られているが、この光触媒を含有する塗膜
を、多孔質となるセメント質塗膜とすることにより、大
気、すなわちＮＯｘ等に触れる接触面積が大きくなり、
効果的にＮＯｘ等が除去されること、又大気汚染物の中
でもＮＯｘを対象とした場合、光触媒の酸化力により生
成されるＮＯ３ −を中和するのにセメント質は適してい
ることを知得した。The present inventor has conducted intensive studies on how to provide a soundproof panel with a NOx reduction effect in addition to a soundproof effect. As a result, a photocatalyst such as titanium dioxide is irradiated with ultraviolet rays. It is activated by this, and since strong oxidizing power is expressed by the activation, if a coating film containing a photocatalyst is formed on the outer surface of the soundproof panel, NOx and the like in the air are oxidized when touching this photocatalyst. It is known to be removed, but by making the coating containing the photocatalyst a porous cementitious coating, the contact area in contact with the atmosphere, that is, NOx, etc., increases,
It is known that cement is suitable for effectively removing NOx and the like, and for neutralizing NO 3 − generated by the oxidizing power of the photocatalyst when NOx is targeted among air pollutants. I got it.
【０００６】又、防音パネルは一般には軽量化のために
アルミニウム合金や合成樹脂等が用いられ、アルミニウ
ム合金は陽極酸化処理や化学被膜処理といった酸化皮膜
を形成させる表面処理を一般にはしていない、いわゆる
無処理アルミニウムが使用される。しかしながらこの無
処理アルミニウムに光触媒を含有するセメント質塗膜を
形成すると次のような問題がある。[0006] In addition, the soundproof panel is generally made of an aluminum alloy or a synthetic resin for weight reduction, and the aluminum alloy is not generally subjected to a surface treatment for forming an oxide film such as an anodizing treatment or a chemical film treatment. So-called untreated aluminum is used. However, forming a cementitious coating film containing a photocatalyst on this untreated aluminum has the following problems.
【０００７】すなわち二酸化チタン等の光触媒粒子を含
有するエマルジョン化セメントはｐＨ１３〜１４のアル
カリ性を示すため無処理アルミニウムに、この光触媒を
含有するエマルジョン化セメントを直接無処理アルミニ
ウムに塗装した場合、数１で示される反応がが起こり、
アルミニウムが腐食する。That is, an emulsified cement containing photocatalyst particles such as titanium dioxide exhibits alkalinity of pH 13 to 14, so that when the emulsified cement containing the photocatalyst is directly applied to untreated aluminum, The reaction indicated by
Aluminum corrodes.
【数１】 このため、無処理アルミニウムに光触媒を含有するエマ
ルジョン化セメントを直接塗装すると発生した水素によ
り塗膜の浮きやピンホールが発生するため良好な成膜が
なされない。(Equation 1) For this reason, when the emulsified cement containing a photocatalyst is directly applied to untreated aluminum, floating of the coating film and pinholes occur due to the generated hydrogen, so that good film formation cannot be performed.
【０００８】そこで、アルカリによるアルミニウムの腐
食対策及び耐久密着性改善のために、アルミニウムに表
面処理として酸化皮膜を形成させたアルマイト処理アル
ミニウムを使用し、検討を行った。Therefore, in order to prevent the corrosion of aluminum by alkali and improve the durability and adhesion, anodized aluminum having an oxide film formed on aluminum as a surface treatment was used and studied.
【０００９】アルミニウムに表面処理として酸化皮膜を
形成する場合は、一般に、陽極酸化皮膜の表面は微細孔
が多数存在しているため（未封孔）、耐食性を向上させ
るために封孔処理が行われている。封孔処理は陽極酸化
皮膜を高温の水に浸漬させ、水との反応により水和反応
が進行しベーマイト化させる。When an oxide film is formed on aluminum as a surface treatment, the surface of the anodic oxide film generally has a large number of micropores (unsealed), so that a sealing treatment is performed to improve corrosion resistance. Have been done. In the sealing treatment, the anodic oxide film is immersed in high-temperature water, and the hydration reaction proceeds by reaction with water to form boehmite.
【００１０】しかしながら、耐食性は封孔処理すること
により格段に向上するが、封孔処理表面に、前記の如き
光触媒を含有するセメント質塗膜を形成すると、陽極酸
化皮膜形成直後に形成されていた微細孔が封孔され凹凸
がなくなっているためアンカー効果が期待できなくな
り、密着性が低下してしまう。[0010] However, although the corrosion resistance is remarkably improved by the sealing treatment, when the cementitious coating film containing the photocatalyst as described above is formed on the sealing treatment surface, it is formed immediately after the formation of the anodic oxide coating. Since the micropores are sealed and the irregularities are eliminated, the anchor effect cannot be expected, and the adhesion is reduced.
【００１１】そこで、アルカリによるアルミニウムの腐
食防止、光触媒を含有するセメント質塗膜の密着性を高
めることを目的にアルマイト（未封孔）処理アルミニウ
ムを使用し、この上に光触媒を含有するエマルジョン化
セメントにより塗膜を形成させたところ、アルミニウム
の腐食が防止され、且つ塗膜密着性も確保することがで
きた。Therefore, in order to prevent aluminum from being corroded by alkali and to improve the adhesion of a cementitious coating film containing a photocatalyst, anodized aluminum (unsealed) is used, and an emulsion containing a photocatalyst is formed thereon. When a coating film was formed with cement, corrosion of aluminum was prevented, and adhesion of the coating film was also ensured.
【００１２】又、アルマイト未封孔処理したアルミニウ
ムは表面が多孔質状であるために、その上に形成した光
触媒を含有するセメント質塗膜は、大気、すなわちＮＯ
ｘ等に触れる接触面積が大きくなり、極めて効果的にＮ
Ｏｘ等が除去されることが判明した。Further, since the surface of the aluminum which has not been subjected to the alumite sealing treatment is porous, the cementitious coating film containing the photocatalyst formed thereon is exposed to the atmosphere, ie, NO.
x and the contact area that touches the
It was found that Ox and the like were removed.
【００１３】本発明は、上記知得により完成したもので
ある。すなわち本発明に係る大気浄化防音パネルは、防
音パネルの外面に、光触媒を含有するセメント質塗膜が
形成され、該セメント質塗膜に紫外線を照射することに
より光触媒を活性化させ、もって該セメント質塗膜に付
着あるいは飛来した排ガスなどの有害物が、活性化させ
た光触媒により酸化あるいは分解されるようになされた
ことを特徴とするものである。The present invention has been completed based on the above knowledge. That is, the air purification soundproofing panel according to the present invention is such that a cementitious coating film containing a photocatalyst is formed on the outer surface of the soundproofing panel, and the cementitious coating film is irradiated with ultraviolet rays to activate the photocatalyst. Harmful substances, such as exhaust gas, which have adhered to or flew from the coating film, are oxidized or decomposed by the activated photocatalyst.
【００１４】本発明によれば、防音パネルの外面に光触
媒を含有する塗膜が形成されているので、車両等の走行
に伴う風圧によってＮＯｘ等が多く存在する地表近くの
空気が巻き上げられて、光触媒を含有するセメント質塗
膜面に運ばれ、これによってＮＯｘ等が光触媒に触れる
ことにより、ＮＯｘ等が効果的に除去される。又前記塗
膜は、多孔質であるセメント質塗膜であるので、大気、
すなわちＮＯｘ等に触れる接触面積が大きく、効果的に
ＮＯｘ等が除去される。According to the present invention, since the coating film containing the photocatalyst is formed on the outer surface of the soundproof panel, air near the ground surface where a large amount of NOx and the like is present is lifted up by wind pressure accompanying the traveling of the vehicle and the like, It is carried to the cementitious coating film surface containing a photocatalyst, whereby NOx and the like come into contact with the photocatalyst, whereby NOx and the like are effectively removed. Further, since the coating film is a cementitious coating film which is porous,
That is, the contact area in contact with NOx or the like is large, and NOx or the like is effectively removed.
【００１５】次に本発明に係る大気浄化方法は、アルミ
ニウムのアルマイト未封孔処理面に光触媒を含有するセ
メント質塗膜が形成され、該セメント質塗膜に紫外線を
照射することにより光触媒を活性化させ、もってセメン
ト質塗膜に付着あるいは飛来した排ガスなどの有害物
が、活性化させた光触媒により酸化あるいは分解される
ようになされたことを特徴とするものである。Next, in the air purification method according to the present invention, a cementitious coating containing a photocatalyst is formed on the unsealed aluminum anodized surface, and the photocatalyst is activated by irradiating the cementitious coating with ultraviolet light. And harmful substances such as exhaust gas that has adhered to or flowed to the cementitious coating film are oxidized or decomposed by the activated photocatalyst.
【００１６】本発明によれば、光触媒を含有するセメン
ト質塗膜に大気中のＮＯｘ等が光触媒に触れることによ
り、ＮＯｘ等が効果的に除去される。又前記セメント質
塗膜は、表面が多孔質状であるアルミニウムのアルマイ
ト未封孔処理面に形成されているので、セメント質塗膜
の多孔質と相まって、大気、すなわちＮＯｘ等に触れる
接触面積が大きく、極めて効果的にＮＯｘ等が除去され
る。According to the present invention, NOx and the like are effectively removed by bringing NOx and the like in the air into contact with the photocatalyst on the cementitious coating film containing the photocatalyst. In addition, since the cementitious coating film is formed on an aluminum anodized unsealed surface having a porous surface, the contact area in contact with the atmosphere, that is, NOx, etc., in combination with the porous nature of the cementitious coating film. Large and very effectively removes NOx and the like.
【００１７】[0017]
【発明の実施の形態】次に、本発明の実施の形態につい
て図１を参照し、具体的に説明する。すなわち図１は本
発明に係る防音パネルの実施の一形態を示す断面図であ
る。Next, an embodiment of the present invention will be specifically described with reference to FIG. That is, FIG. 1 is a cross-sectional view showing one embodiment of the soundproof panel according to the present invention.
【００１８】図面において、防音パネル１は、多数の開
孔２１を有する前面板２と、その背後に形成された背面
板３とによって形成された中空内に吸音材４が内装され
たものであって、前記前面板２の開孔２１より中空内に
入射された騒音を吸音材４により吸音させると共に、中
空内で反射を繰り返させることにより音を減衰させ、さ
らに背面板３により遮音して音が背面側に漏れないよう
になされたものである。In the drawing, a soundproof panel 1 has a sound absorbing material 4 inside a hollow formed by a front plate 2 having a large number of openings 21 and a back plate 3 formed behind the front plate 2. In addition, the sound incident into the hollow through the opening 21 of the front plate 2 is absorbed by the sound absorbing material 4, the sound is attenuated by repeating reflection in the hollow, and the sound is further isolated by the rear plate 3. Is designed not to leak to the back side.
【００１９】５は、前記防音パネル１の外面に形成され
た光触媒を含有するセメント質塗膜であり、このセメン
ト質塗膜５に紫外線を照射することにより光触媒が活性
化され、活性化された光触媒により、セメント質塗膜５
の外面に付着あるいは飛来した排ガスなどの有害物が酸
化あるいは分解されるようになされている。Reference numeral 5 denotes a cementitious coating film containing a photocatalyst formed on the outer surface of the soundproof panel 1. By irradiating the cementitious coating film 5 with ultraviolet light, the photocatalyst was activated and activated. Cementitious coating film 5 by photocatalyst
Harmful substances such as exhaust gas adhering to or flying on the outer surface of the vehicle are oxidized or decomposed.
【００２０】光触媒を含有するセメント質塗膜５は、本
形態では前面板２と背面板３とにそれぞれ形成されてい
るが、車両等に対向してＮＯｘ等に触れやすい前面板２
のみでもよく、又背面板３のみでもよい。In the present embodiment, the cementitious coating film 5 containing a photocatalyst is formed on the front plate 2 and the back plate 3, respectively.
Or only the back plate 3.
【００２１】セメント質塗膜５に含有される光触媒とし
ては二酸化チタン微粒子が好適に用いられる。二酸化チ
タンはルチル型でもよいが、活性の高さからアナターゼ
型のものが好ましく、この二酸化チタンに波長領域が３
００〜４００ｎｍの紫外線を照射することによって活性
化され、その活性化により強い酸化力が発現されて、二
酸化チタンの表面に接する大気のＮＯｘ等が水の存在に
よって硝酸等に酸化され、次いで雨水等により洗い流さ
れて除去される。As the photocatalyst contained in the cementitious coating film 5, titanium dioxide fine particles are preferably used. Titanium dioxide may be of the rutile type, but is preferably of the anatase type because of its high activity.
It is activated by irradiating ultraviolet rays having a wavelength of 00 to 400 nm, and the activation produces a strong oxidizing power, and NOx or the like in the atmosphere in contact with the surface of titanium dioxide is oxidized to nitric acid or the like by the presence of water, and then rainwater or the like And is washed away.
【００２２】二酸化チタンを活性化させる３００〜４０
０ｎｍの紫外線は、太陽光に多く含まれ、又水銀灯やブ
ラックライト等の光にも含まれているために、前記前面
板２や背面板３に太陽光が照射されるようになされても
よいし、水銀灯やブラックライト等の紫外線を多く含む
人工光源が付設され、その光が照射されるようになされ
ていてもよい。Activating Titanium Dioxide 300-40
Since the ultraviolet light of 0 nm is included in a large amount of sunlight and is also included in light of a mercury lamp, a black light, or the like, the front plate 2 and the back plate 3 may be irradiated with sunlight. Alternatively, an artificial light source containing a large amount of ultraviolet light, such as a mercury lamp or black light, may be provided, and the light may be emitted.
【００２３】なお光触媒を含有するセメント質塗膜５が
形成された前面板２や背面板３の材質は、合成樹脂材や
ステンレス、亜鉛鋼板等の金属材等、特に限定されるも
のではないが、金属材の場合は、軽量化を図るためにア
ルミニウムから形成するのが好ましい。又このアルミニ
ウムはアルマイト未封孔処理面とし、このアルマイト未
封孔処理面に光触媒を含有するセメント質塗膜を形成す
れば、密着性が向上し、又大気、すなわちＮＯｘ等に触
れる接触面積が大きく、極めて効果的にＮＯｘ等が除去
される。The material of the front plate 2 and the back plate 3 on which the cementitious coating film 5 containing the photocatalyst is formed is not particularly limited, such as a synthetic resin material or a metal material such as stainless steel or zinc steel plate. In the case of a metal material, it is preferably formed of aluminum in order to reduce the weight. If this aluminum is treated with an alumite-unsealed surface and a cementitious coating containing a photocatalyst is formed on the alumite-unsealed surface, the adhesion is improved, and the contact area in contact with the atmosphere, that is, NOx, etc. is improved. Large and very effectively removes NOx and the like.
【００２４】又、光触媒を含有するセメント質塗膜５の
厚みも特に限定されるものではないが、１０〜１０００
μｍの範囲で形成されているのが好ましい。１０μｍ未
満では光触媒の量が少なくＮＯｘ等の除去効果が乏し
く、又１０００μｍを越えると厚膜になりすぎ、成膜し
た際に、塗膜の割れが起こり、良好な塗膜が得られにく
い。The thickness of the cementitious coating film 5 containing the photocatalyst is not particularly limited.
It is preferably formed in the range of μm. If it is less than 10 μm, the amount of the photocatalyst is small and the effect of removing NOx and the like is poor. If it exceeds 1000 μm, the film becomes too thick, and when the film is formed, the coating film cracks and it is difficult to obtain a good coating film.
【００２５】なお防音パネル１は、図１の如き形態に限
定されるものではなく、任意の形態を採用することがで
き、筒状であってもよいし、ルーバー状となされたもの
であってもよく、又中空状でなく単なる板状であっても
よい。筒状やルーバー状となされていれば、意匠性を有
するため、橋梁や高架道路橋、堀割、半地下道路等の構
造体の下面部や壁面、天井面等に好適に取付けることが
できる。The soundproof panel 1 is not limited to the form as shown in FIG. 1, but may have any form, and may be cylindrical or louvered. It may be a simple plate shape instead of a hollow shape. If it has a tubular shape or a louver shape, it has a design property, so that it can be suitably attached to a lower surface portion, a wall surface, a ceiling surface, or the like of a structure such as a bridge, an elevated road bridge, a trench, a semi-underground road, or the like.
【００２６】次に本発明に係る大気浄化方法について
は、アルミニウムのアルマイト未封孔処理面に光触媒を
含有するセメント質塗膜５を形成し、このセメント質塗
膜５に紫外線を照射して光触媒を活性化し、セメント質
塗膜５に付着あるいは飛来した排ガスなどの有害物を酸
化あるいは分解することにより、Ｎ０ｘ等を除去するも
のであり、前記防音パネル１は防音性も具備させたもの
であるが、大気浄化のみを図る点において相異するのみ
で、その他は上記で説明した事項がほとんど該当するの
で、図１を参照し、その説明を省略する。Next, in the air purification method according to the present invention, a cementitious coating film 5 containing a photocatalyst is formed on an unsealed aluminum alumite-treated surface, and the cementitious coating film 5 is irradiated with ultraviolet light to form a photocatalyst. By oxidizing or decomposing harmful substances such as exhaust gas that has adhered to or flown into the cementitious coating film 5, thereby removing NOx and the like. The soundproof panel 1 also has soundproofing properties. However, the difference is only in purifying the air, and the other items almost correspond to the items described above. Therefore, the description is omitted with reference to FIG.
【００２７】この大気浄化方法の応用例としては、例え
ば、アルマイト未封孔処理を施したアルミニウム板上に
光触媒を含有するセメント質塗膜５を形成し、このアル
ミニウム板をビルの壁面、その他の構造物等に取付け、
セメント質塗膜５に太陽光が照射されるようにしておけ
ば、Ｎ０ｘ等が効果的に除去される。As an application example of this air purification method, for example, a cementitious coating film 5 containing a photocatalyst is formed on an aluminum plate which has been subjected to an unsealed alumite treatment. Attach to structures, etc.
If sunlight is applied to the cementitious coating film 5, NOx and the like are effectively removed.
【００２８】[0028]
【実施例】次に以下に示すような実施例１〜９の大気浄
化材を作製し、その評価試験を行った。EXAMPLES Next, the air purifying materials of Examples 1 to 9 as shown below were produced, and their evaluation tests were performed.
【００２９】（実施例１）無処理アルミニウム上に二酸
化チタン微粒子からなる光触媒を含有するエマルジョン
化セメントを塗布し、光触媒を含有する膜厚４００μｍ
のセメント質塗膜を形成したもの。(Example 1) An emulsified cement containing a photocatalyst consisting of titanium dioxide fine particles was applied on untreated aluminum, and a film thickness of 400 µm containing the photocatalyst was applied.
Which formed a cementitious coating film.
【００３０】（実施例２）アルマイト封孔処理を施した
アルミニウム上に二酸化チタン微粒子からなる光触媒を
含有するエマルジョン化セメントを塗布し、光触媒を含
有する膜厚５０μｍのセメント質塗膜を形成したもの。(Example 2) An emulsified cement containing a titanium oxide fine particle containing a photocatalyst was applied to alumite-sealed aluminum to form a cementitious coating film containing the photocatalyst and having a thickness of 50 µm. .
【００３１】（実施例３）アルマイト封孔処理を施した
アルミニウム上に二酸化チタン微粒子からなる光触媒を
含有するエマルジョン化セメントを塗布し、光触媒を含
有する膜厚１００μｍのセメント質塗膜を形成したも
の。(Example 3) An emulsified cement containing titanium dioxide fine particles containing a photocatalyst was applied to aluminum subjected to alumite sealing treatment to form a cementitious coating film containing a photocatalyst and having a thickness of 100 µm. .
【００３２】（実施例４）アルマイト封孔処理を施した
アルミニウム上に二酸化チタン微粒子からなる光触媒を
含有するエマルジョン化セメントを塗布し、光触媒を含
有する膜厚４００μｍのセメント質塗膜を形成したも
の。(Example 4) An emulsified cement containing a titanium oxide fine particle containing a photocatalyst was applied to aluminum subjected to alumite sealing treatment to form a cementitious coating film containing a photocatalyst and having a thickness of 400 μm. .
【００３３】（実施例５）アルマイト封孔処理を施した
アルミニウム上に二酸化チタン微粒子からなる光触媒を
含有するエマルジョン化セメントを塗布し、光触媒を含
有する膜厚６００μｍのセメント質塗膜を形成したも
の。(Example 5) An emulsified cement containing a titanium oxide fine particle containing a photocatalyst was applied on aluminum subjected to alumite sealing treatment to form a cementitious coating film containing a photocatalyst having a thickness of 600 μm. .
【００３４】（実施例６）アルマイト未封孔処理を施し
たアルミニウム上に二酸化チタン微粒子からなる光触媒
を含有するエマルジョン化セメントを塗布し、光触媒を
含有する膜厚１００μｍのセメント質塗膜を形成したも
の。Example 6 An emulsified cement containing a photocatalyst composed of titanium dioxide fine particles was applied to aluminum on which alumite had not been sealed to form a cementitious coating film containing the photocatalyst and having a thickness of 100 μm. thing.
【００３５】（実施例７）アルマイト未封孔処理を施し
たアルミニウム上に二酸化チタン微粒子からなる光触媒
を含有するエマルジョン化セメントを塗布し、光触媒を
含有する膜厚３００μｍのセメント質塗膜を形成したも
の。Example 7 An emulsified cement containing a photocatalyst consisting of titanium dioxide fine particles was applied to aluminum on which alumite had not been sealed to form a cementitious coating film containing a photocatalyst and having a thickness of 300 μm. thing.
【００３６】（実施例８）アルマイト未封孔処理を施し
たアルミニウム上に二酸化チタン微粒子からなる光触媒
を含有するエマルジョン化セメントを塗布し、光触媒を
含有する膜厚５００μｍのセメント質塗膜を形成したも
の。Example 8 An emulsified cement containing a photocatalyst composed of titanium dioxide fine particles was applied on aluminum which had not been sealed with alumite to form a cementitious coating film containing the photocatalyst and having a thickness of 500 μm. thing.
【００３７】（実施例９）アルマイト未封孔処理を施し
たアルミニウム上に二酸化チタン微粒子からなる光触媒
を含有するエマルジョン化セメントを塗布し、光触媒を
含有する膜厚６００μｍのセメント質塗膜を形成したも
の。Example 9 An emulsified cement containing titanium dioxide fine particles containing a photocatalyst was applied on aluminum which had not been sealed with alumite to form a cementitious coating film containing the photocatalyst and having a thickness of 600 μm. thing.
【００３８】評価試験項目及び方法、評価基準は以下の
通りである。The evaluation test items, methods and evaluation criteria are as follows.
【００３９】（外観）塗装後の塗膜表面の外観を目視に
て確認した。 Ａ：良好 Ｂ：クラック、塗膜浮き、ピンホール等発生 Ｃ：塗膜全面剥離(Appearance) The appearance of the surface of the coating film after coating was visually confirmed. A: Good B: Crack, floating of coating film, occurrence of pinhole, etc. C: Complete peeling of coating film
【００４０】（２）密着性 布ガムテープにて塗膜表面の剥離試験を行い、塗膜の剥
離有無を確認した。 Ａ：剥離なし Ｂ：塗膜僅かに剥離 Ｃ：塗膜剥離(2) Adhesion A peeling test of the coating film surface was performed using a cloth gum tape, and the presence or absence of peeling of the coating film was confirmed. A: No peeling B: Peeling of coating film slightly C: Peeling of coating film
【００４１】（３）耐沸騰水性 沸騰水中に２時間浸漬後、布ガムテープにて塗膜表面の
剥離試験を行い塗膜の剥離有無を確認した。 Ａ：剥離なし Ｂ：塗膜僅かに剥離 Ｃ：塗膜全面剥離(3) Boiling water resistance After immersion in boiling water for 2 hours, a peeling test of the coating film surface was performed with a cloth gum tape to confirm the presence or absence of peeling of the coating film. A: No peeling B: Peeling of the coating slightly C: Peeling of the whole coating
【００４２】（４）耐湿潤冷熱繰返性試験（凍結融解試
験） 試験片を水に浸漬させ、−２０度から８０度（６５％
Ｒ．Ｈ．）の温室度条件にて耐久性試験を行い、試験後
の塗膜表面を観察する。 Ａ：異状なし Ｂ：塗膜僅かに剥離 Ｃ：全面浮き・剥離発生(4) Wet / cooling / heat repetition resistance test (freeze-thaw test) A test piece was immersed in water, and was -20 to 80 degrees (65%
R. H. A) A durability test is performed under the greenhouse condition of (3), and the surface of the coating film after the test is observed. A: No abnormality B: Slight peeling of coating film C: Floating and peeling of entire surface
【００４３】（５）キャス試験 ＪＩＳ−Ｈ−８８６１に準ずる。 Ａ：全く変化無し Ｂ：白錆の発生が認められる Ｃ：白錆の発生と塗膜の膨れ・剥離が認められる(5) Cass test According to JIS-H-8861. A: No change B: White rust generation is observed C: White rust generation and blistering / peeling of the coating film are observed
【００４４】（６）ＮＯｘ除去性能 図２に示すＮＯｘ除去性能測定装置を用いてＮＯｘ除去
性能を測定した。図２において、Ａは汚染物質（この場
合は一酸化窒素）の標準ガス（濃度５ｐｐｍ前後）を入
れた高圧容器、Ｂはこの標準ガスを希釈する高純度空気
を入れた高圧容器、Ｃは減圧弁、Ｄは精密流量調節器、
Ｅは四方切換弁、Ｆはガラス製のシャーレ型反応容器、
Ｇは反応容器Ｆに入れた大気浄化材試料、Ｈは光化学用
蛍光灯（１５Ｗ×３本）、Ｉは化学発光式窒素酸化物
計、Ｊは空気ポンプ、Ｋ及びＬは排気口である。反応容
器Ｆは２個直列に設けられ、大気浄化材試料Ｇはこれら
に分けて入れられている。(6) NOx removal performance The NOx removal performance was measured using the NOx removal performance measuring device shown in FIG. In FIG. 2, A is a high-pressure vessel containing a standard gas (concentration of about 5 ppm) of a pollutant (in this case, nitric oxide), B is a high-pressure vessel containing high-purity air for diluting this standard gas, and C is a depressurized vessel. Valve, D is a precision flow controller,
E is a four-way switching valve, F is a glass petri dish type reaction vessel,
G is an air purifying material sample put in a reaction vessel F, H is a fluorescent lamp for photochemistry (15 W × 3), I is a chemiluminescent nitrogen oxide meter, J is an air pump, and K and L are exhaust ports. The two reaction vessels F are provided in series, and the air purifying material sample G is separately stored therein.
【００４５】（７）耐候性 サンシャインカーボンアーク灯式耐候性試験機を用い
て、試験後の塗膜外観を目視にて評価した。また、ＮＯ
ｘ除去性能も評価した。 Ａ：異状なし Ｂ：チョーキング発生 Ｃ：塗膜剥離(7) Weather Resistance The appearance of the coating film after the test was visually evaluated using a sunshine carbon arc lamp type weather resistance tester. NO
The x removal performance was also evaluated. A: No abnormality B: Chalking occurred C: Film peeled
【００４６】上記（１）〜（７）の評価の結果を表１に
示し、又（７）の耐候性試験後の実施例７の場合のＳ−
ＷＯＭ（サンシャインウエザオメーター）照射時間に対
するＮＯｘ除去性能の結果を表２に示した。The results of the above evaluations (1) to (7) are shown in Table 1, and the S- value of Example 7 after the weather resistance test of (7) was obtained.
Table 2 shows the results of the NOx removal performance with respect to the WOM (sunshine weatherometer) irradiation time.
【００４７】[0047]
【表１】 [Table 1]
【００４８】[0048]
【表２】 [Table 2]
【００４９】上記表１の結果より、アルマイト未封孔処
理を施したアルミニウムを使用した実施例６〜９は、ア
ルマイト封孔処理を施したアルミニウムを使用した実施
例２〜５に対し、密着性において優れており、又セメン
ト質塗膜の厚みが同一のものをそれぞれ較べると、実施
例６〜９は、実施例２〜５に対し、ＮＯｘ除去性能も優
れている。From the results shown in Table 1 above, Examples 6 to 9 using aluminum which had not been subjected to alumite sealing treatment had better adhesion to Examples 2 to 5 which used aluminum having undergone alumite sealing treatment. In comparison with those having the same thickness of the cementitious coating film, Examples 6 to 9 are superior to Examples 2 to 5 also in NOx removal performance.
【００５０】又表２より、アルマイト未封孔処理を施し
たアルミニウムを使用した実施例７は、アルミニウムの
腐食が防止され、長期にわたってＮＯｘ除去性能を維持
することが判る。From Table 2, it can be seen that Example 7 using aluminum which had not been subjected to alumite unsealing treatment prevented aluminum corrosion and maintained NOx removal performance for a long period of time.
【００５１】[0051]
【発明の効果】本発明に係る大気浄化防音パネルよれ
ば、防音パネルの外面に光触媒を含有する塗膜が形成さ
れているので、車両等の走行に伴う風圧によってＮＯｘ
等が多く存在する地表近くの空気が巻き上げられて、光
触媒を含有するセメント質塗膜面に運ばれ、これによっ
てＮＯｘ等が光触媒に触れることにより、ＮＯｘ等が効
果的に除去される。又前記塗膜は、多孔質であるセメン
ト質塗膜であるので、大気、すなわちＮＯｘ等に触れる
接触面積が大きく、効果的にＮＯｘ等が除去される。According to the air-purifying soundproofing panel of the present invention, since the coating film containing the photocatalyst is formed on the outer surface of the soundproofing panel, NOx is generated by wind pressure caused by running of a vehicle or the like.
The air near the surface of the ground where a large amount of water exists is taken up and transported to the surface of the cementitious coating film containing the photocatalyst, whereby the NOx and the like come into contact with the photocatalyst, whereby the NOx and the like are effectively removed. Further, since the coating film is a porous cementitious coating film, the contact area in contact with the atmosphere, that is, NOx or the like is large, and NOx or the like is effectively removed.
【００５２】又本発明に係る大気浄化方法によれば、光
触媒を含有するセメント質塗膜に大気中のＮＯｘ等が光
触媒に触れることにより、ＮＯｘ等が効果的に除去され
る。又前記塗膜は、表面が多孔質状であるアルミニウム
のアルマイト未封孔処理面に形成されているので、セメ
ント質塗膜の多孔質と相まって、大気、すなわちＮＯｘ
等に触れる接触面積が大きく、極めて効果的にＮＯｘ等
が除去される。Further, according to the air purification method of the present invention, NOx and the like in the atmosphere are effectively removed by bringing NOx and the like in the atmosphere into contact with the photocatalyst on the cementitious coating film containing the photocatalyst. In addition, since the coating film is formed on a non-sealed aluminum alumite-treated surface having a porous surface, it is combined with the porosity of the cementitious coating film to form air, that is, NOx.
The contact area for touching is large, and NOx and the like are removed very effectively.
【図１】本発明に係る大気浄化防音パネルの実施の一形
態を示す断面図である。FIG. 1 is a sectional view showing an embodiment of an air purification soundproofing panel according to the present invention.
【図２】ＮＯｘ除去測定装置の概略図である。FIG. 2 is a schematic diagram of a NOx removal measurement device.
【符号の説明】 １ 防音パネル ２ 前面板 ２１ 開孔 ３ 背面板 ４ 吸音材 ５ セメント質塗膜 Ａ 汚染物質用高圧容器 Ｂ 高純度空気用高圧容器 Ｃ 減圧弁 Ｄ 精密流量調整機 Ｅ ４方切替弁 Ｆ 反応容器 Ｇ 大気浄化材試料 Ｈ 光化学用蛍光灯 Ｉ 化学発光式窒素酸化物計 Ｊ 空気ポンプ Ｋ 排気口 Ｌ 排気口[Description of Signs] 1 soundproof panel 2 front plate 21 opening 3 back plate 4 sound absorbing material 5 cementitious coating film A high-pressure container for pollutant B high-pressure container for high-purity air C pressure reducing valve D precision flow controller E four-way switching Valve F Reaction vessel G Air purifying material sample H Fluorescent lamp for photochemistry I Chemiluminescent nitrogen oxide meter J Air pump K Exhaust port L Exhaust port
Claims (4)
セメント質塗膜が形成され、該セメント質塗膜に紫外線
を照射することにより光触媒を活性化させ、もって該セ
メント質塗膜に付着あるいは飛来した排ガスなどの有害
物が、活性化させた光触媒により酸化あるいは分解され
るようになされたことを特徴とする大気浄化防音パネ
ル。1. A cementitious coating containing a photocatalyst is formed on an outer surface of a soundproof panel, and the cementitious coating is irradiated with ultraviolet rays to activate the photocatalyst and adhere to or adhere to the cementitious coating. An air purification soundproofing panel characterized in that harmful substances such as flue gas that flew are oxidized or decomposed by an activated photocatalyst.
ルミニウムのアルマイト未封孔処理面に形成されている
ことを特徴とする請求項１記載の大気浄化防音パネル。2. The air-purifying soundproof panel according to claim 1, wherein the cementitious coating film containing a photocatalyst is formed on an aluminum anodized unsealed surface.
アナターゼ型二酸化チタンであり、そのセメント質塗膜
の被膜厚みは１０〜１０００μｍの範囲で形成されてい
ることを特徴とする請求項１又は２に記載の大気浄化防
音パネル。3. The photocatalyst contained in the cementitious coating film,
The air purification soundproofing panel according to claim 1 or 2, wherein the panel is made of anatase type titanium dioxide, and the coating thickness of the cementitious coating film is formed in a range of 10 to 1000 µm.
に光触媒を含有するセメント質塗膜が形成され、該セメ
ント質塗膜に紫外線を照射することにより光触媒を活性
化させ、もってセメント質塗膜に付着あるいは飛来した
排ガスなどの有害物が、活性化させた光触媒により酸化
あるいは分解されるようになされたことを特徴とする大
気浄化方法。4. A cementitious coating film containing a photocatalyst is formed on the surface of aluminum which has not been sealed with alumite. The photocatalyst is activated by irradiating the cementitious coating film with ultraviolet light. An air purification method, characterized in that harmful substances such as exhaust gas adhering or flying are oxidized or decomposed by an activated photocatalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02595699A JP3832995B2 (en) | 1999-02-03 | 1999-02-03 | Air purification soundproof panel and air purification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02595699A JP3832995B2 (en) | 1999-02-03 | 1999-02-03 | Air purification soundproof panel and air purification method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000220117A true JP2000220117A (en) | 2000-08-08 |
| JP3832995B2 JP3832995B2 (en) | 2006-10-11 |
Family
ID=12180213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02595699A Expired - Lifetime JP3832995B2 (en) | 1999-02-03 | 1999-02-03 | Air purification soundproof panel and air purification method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3832995B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1369532A2 (en) | 2002-06-05 | 2003-12-10 | Minebea Co., Ltd. | Air purifying sound insulating wall and its applications |
| US6887288B2 (en) | 2002-06-05 | 2005-05-03 | Minebea Co., Ltd. | Superfinishing grindstone |
| EP1642643A1 (en) * | 2004-09-29 | 2006-04-05 | Eurovia | Coating composition for sound-absorbing and pollution-abating facings |
| CN107619226A (en) * | 2017-10-23 | 2018-01-23 | 中国海洋大学 | A kind of honeycombed cement film and its production and use |
| CN109989363A (en) * | 2019-05-10 | 2019-07-09 | 深圳市双禹王声屏障工程技术有限公司 | A composite sound-absorbing board inlaid with acrylic board |
| WO2021224358A1 (en) | 2020-05-05 | 2021-11-11 | Witkowski Hubert | A filter and a method for manufacturing thereof |
-
1999
- 1999-02-03 JP JP02595699A patent/JP3832995B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1369532A2 (en) | 2002-06-05 | 2003-12-10 | Minebea Co., Ltd. | Air purifying sound insulating wall and its applications |
| EP1369532A3 (en) * | 2002-06-05 | 2004-04-14 | Minebea Co., Ltd. | Air purifying sound insulating wall and its applications |
| US6887288B2 (en) | 2002-06-05 | 2005-05-03 | Minebea Co., Ltd. | Superfinishing grindstone |
| EP1642643A1 (en) * | 2004-09-29 | 2006-04-05 | Eurovia | Coating composition for sound-absorbing and pollution-abating facings |
| CN107619226A (en) * | 2017-10-23 | 2018-01-23 | 中国海洋大学 | A kind of honeycombed cement film and its production and use |
| CN107619226B (en) * | 2017-10-23 | 2020-06-16 | 中国海洋大学 | A kind of porous cement film and its preparation method and use |
| CN109989363A (en) * | 2019-05-10 | 2019-07-09 | 深圳市双禹王声屏障工程技术有限公司 | A composite sound-absorbing board inlaid with acrylic board |
| WO2021224358A1 (en) | 2020-05-05 | 2021-11-11 | Witkowski Hubert | A filter and a method for manufacturing thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3832995B2 (en) | 2006-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Photocatalytic construction and building materials: from fundamentals to applications | |
| Ohama et al. | Application of titanium dioxide photocatalysis to construction materials: state-of-the-art report of the RILEM Technical Committee 194-TDP | |
| EP1247576A1 (en) | Photocatalyst module, process for producing the same, and photocatalyst reaction apparatus | |
| JP2000220117A (en) | Atmosphere cleaning sound insulation panel and atmosphere cleaning method | |
| Pedersen et al. | Removing NOx pollution by photocatalytic building materials in real-life: evaluation of existing field studies | |
| JP3792081B2 (en) | Air purification soundproof panel | |
| US20050159309A1 (en) | Environmental coatings assemblies | |
| Jensen et al. | Real-life field studies of the NOx removing properties of photocatalytic surfaces in roskilde and copenhagen airport, Denmark | |
| Beeldens | Environmental Friendly concrete pavement blocks: air purification in the centre of Antwerp | |
| JPH10331116A (en) | Sound insulation wall | |
| JP2006131917A (en) | Photocatalytic hydrophilic coating composition | |
| JP2005168784A (en) | Atmosphere purification material, atmosphere purification panel, and external panel | |
| JPH09208273A (en) | Laminated glass and soundproof plate using the same | |
| JP4081220B2 (en) | Method for producing thermal spray coated member excellent in corrosion resistance and environmental purification characteristics, and wire for thermal spraying | |
| JP3756646B2 (en) | Sound barrier | |
| JP2002126451A (en) | Equipment for removing nitrogen oxides from the atmosphere | |
| Yu | Ambient air treatment by titanium dioxide (TiO2) based photocatalyst in Hong Kong | |
| JPH09225392A (en) | Automobile and coating method therefor | |
| JP3385850B2 (en) | Composite material with hydrophilicity | |
| KR20030086971A (en) | Road equipment of brightness catalyst coating | |
| JP4232217B2 (en) | Lighting device and lamp with photocatalyst film | |
| JP3857883B2 (en) | Nitrogen oxide removing composition and nitrogen oxide removing method | |
| KR20060026530A (en) | Photocatalyst coated road structure (tunnel, underground road interior) | |
| Dewi et al. | Development of Green Pavement for Reducing Oxides of Nitrogen (NO x) in the Ambient Air. | |
| JP2000079650A (en) | Structure with air purification function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20051213 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060201 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060228 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060427 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20060627 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20060718 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100728 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100728 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110728 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110728 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120728 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120728 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130728 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140728 Year of fee payment: 8 |
|
| EXPY | Cancellation because of completion of term |